Tools & Services

Use of Middle East Star Drill Co. Whipstock and milling tools offers to operators new alternatives to grass roots Directional & horizontal wells. The Middle East Star Drill Co. Whipstock is a quality built tool designed to prepare or “cut a window” in the casing of your existing well bore. Our Whipstock can be utilized in a vertical or high angle hole for sidetracking the original well bore or in preparation for directional or horizontal drilling. The reduction in cost per foot per recoverable barrel of oil has brought a new focus on oil in place reserves. The Middle East Star Drill Co. whipstock is designed to cut a window in the casing of the existing wellbore. This design allows the tool to be run in vertical or high angle holes. We have two type of whipstock:

1- One Trip Case Hole Whipstock :

In this type to save time, systems can accomplish all sidetracking tasks in one trip. On the first trip in the hole, both styles of the Whipstock are lowered by way of the starting mill, orientated to your predetermined direction, anchored, and initial milling of the casing window is begun. The completion of the casing window is achieved on subsequent mill runs. In this system following operation done in one stage:

Start the window mill

Complete the mill

Clean up

2- Two Trip Case Hole Whipstock :

2-1- Method of Application for Window Cutting, There are 5 Steps:

Initial step, clamping, cutting through, window service and drilling testing. Operating parameters for every steps as per manufacturer and supervisor Guideline.

Connect the milling cone for sidetrack window-cutting and drilling tools as their designs require.

Drill down the drilling tools to 2~3 meters up the deflector, speed of drilling down should be not faster than 30 pieces/hour. Connect the Kelly bar.

Run the pump to circle the drilling fluid, start the rotary table at a low speed, and record its hanging weight, drill down the drilling tools slowly until the hanging weight changes. Record its depth at this moment.

Start the construction of initial step, clamping, cutting through by the parameters of milling cone.

Trip the drilling tools slowly for the window service as stipulated until there is no jam and blockage.

After window service, start the tentative drilling.

After all the above mentioned operations, first, flush the wall fully, and then put the drilling tools out of the hole.

2-2- Basic Parameters and Performance Data:

The main structure consists of deflecting part, hydraulic part and sealing part (optional) as following pictures.

Milling Structure for Window Opening

Sidetrack window-cutting make use of milling cone and deflector inside of the case pipe. By design, the shape, cutting bezel and alloy are optimized. The milling cone for sidetrack window cutting can finish window cutting and window service at one time together, speed up the construction, and meet the requirements of site work.

The milling cone for sidetrack window-cutting is a combined type. There are three stages: window cutting, window service, stabilizing window. Use proper piece of hard alloy and hard alloy electrode according to different stages, make the best matching between speed and service time to the maximum extent.

Middle East Star Drill has HKTL Series Gyro Inclinometer that have following advantage:

HKLT series dynamically turned gyroscope inclinometer is a new precision gyroscope inclinometer system, particularly the use of the following engineering work：

Magnetic interference from wells around the obstacle orientation

Infill drilling measurement and in the casing completion within or drill pipe measurement.

Old well window directional

Old well trajectory repetition measurement

Metal well drilling orientation measurement

Salt to the well-connected orientation

Oriented perforating

The main engineering application of HKTL Dynamically Tuned Gyro inclinometer include:

Deflecting

Orientation

Well Trace Measurement

Maximize your reservoir value with LWD solutions

Our LWD systems offer superior formation evaluation data to maximize reservoir value while drilling. LWD sensors deliver wire line quality petrophysical data and address directional drilling, formation evaluation, and geosteering applications. Our tools will help you gather reservoir information, enhance drilling performance, and optimize well placement.

Gamma services are probe-based or collar-mounted with our MWD service. Gamma-ray sensors detect lithology changes.

Resistivity services are offered through our system, delivering comprehensive evaluation of formation and near-bore environments.

Our Reservoir Navigation Services use real-time LWD formation evaluation sensors with directional data and formation models to properly target your drilling assembly. This ensures optimal entry to maintain the wellbore in the zone of maximum interest, predicting and avoiding reservoir exit. Azimuthal imaging also is available.

Middle East Star Drill’s LWD system consist from two famous manufacture:

GE LWD

BOTE LWD

MWD Services

 

Measurement While Drilling (“MWD”) systems are installed in the drill string to provide real time measurements of basic trajectory parameters such as inclination, direction, tool-face and temperature. Additional sensors such as pressure, gamma-ray and resistivity may be added depending upon the specific application.

MWD tools consist of three basic sections:

Power Supply – Most tools are powered by lithium batteries or in some cases down-hole generators (turbines).

Sensor Section – Hole trajectory is measured by a sensor stack that has three accelerometers and three magnetometers. The inclination and roll (gravity tool-face) of the tool is made by gravity based measurement devices called accelerometers. Simply stated, they can be considered to be an electronic plumb-bob. Magnetometers measure the earth’s local magnetic field. Combined with inclination sensors the tool can provide a reference direction to magnetic north. This is corrected for true north by adding the localized value for magnetic declination. Other sensors such as pressure, gamma-ray, and resistivity are typically housed in separate dedicated tool sections.

Transmitter – Current MWD tools transmit in two basic manners, by sending pressure waves through the drilling mud (mud pulse) or by transmitting electromagnetic (EM) signals through the earth to surface.

Mud Pulse System

Mud pulse tools operate by either opening or closing a valve in the tool that creates either a pressure surge (positive pulse) or drop (negative pulse). Mud pulse systems are a reliable transmission method.

Gamma

Gamma ray sensors measure the natural radioactive emissions from isotopes of potassium and the uranium and thorium series contained in, or absorbed into the mineral components of surface rocks.

Middle East Star Drill’s MWD system consist of three type of famous MWD:

Tolteq MWD (Positive)

GE Tensor MWD (Positive)

Bench Tree MWD (Positive)

All type can work up to 175 °C.

EM-MWD Services

Electro-Magnetic MWD systems:

Use the same basic sensors and power supplies as the mud pulse systems. The main difference is in the transmission of data. Rather than using the drilling mud to send pressure waves, the tool sends either a magnetic pulse or electrical current through the ground to the surface. On surface the data is received through ground antennas and the data processed. EM systems are significantly faster (10x) than conventional mud pulse. In addition data can be sent at any time (not just when the rig pumps are circulating). The net result is faster overall drilling times. In addition the EM systems are the only practical method to drill underbalance wells involving the use of air, nitrogen, and foam. EM systems have no moving parts and do not create significant restrictions in the drill string. As a result the reliability is significantly higher, and damage from erosion caused by drill solids is minimal. EM tools do have depth limitations which are a function of how much power can be supplied by batteries for the duration of the drilling interval, and at higher power settings the battery costs may be significant.

Electromagnetic Measurement While Drilling “EM MWD” Services:

The EM MWD tool is a wireless MWD System which utilizes low frequency current-loop signals to communicate data to the surface. The EM tool is installed in the BHA and injects electric current into the formation downhole while drilling. An antenna (ground stake) is driven into the surface, which measures the voltage differential (potential) between the stake and a line tied into the casing on the drilling rig. This signal is processed thru surface computers to decode the downhole data. EM signals are not affected by the drilling mud properties or rig pumps and have a significantly higher data rate than mud pulse systems.

Applications:

Underbalanced Drilling

Coal Bed Methane

Production

Draining for HSE

Draining for HSE

Lost Circulation

Vertical Control Drilling

Directional Drilling

Horizontal Drilling

Re-entry Wells

Contaminated mud systems

Features:

The EM MWD tool can be operated at a variety of frequencies, allowing for either high data rate, or extended depths (over 3,500 m) without the need for repeaters or long wire systems. Advanced digital filtering techniques allow two or more rigs to drill on the same pad without interfering with each other’s signal transmission. The tool has directional, gamma ray, and pressure sensors, making it versatile enough to accommodate most of your directional and underbalanced drilling requirements. The wireless communication operates independent of rig pumps and creates virtually no additional pressure restrictions in the BHA. Access to the microprocessor can be made through a unique side entry data port on the rig floor. Simply plug into the tool to program it, retrieve recorded data, or put it to sleep between wells to conserve battery life. The instrument section may be left in the non-magnetic collar between wells or during casing breaks to save rig time handling tools. The EM tool has become a full service tool and able to have “talk down” capability. The tool can be fully controlled from the surface, changing data rates, transmission formats, power levels etc, while drilling.

Middle East Star Drill’s EM-MWD system consist of:

BesTrack EM-MWD System(EMWD-45)

NOV Black Star EM-MWD System

The Blackstar & Bestrack EM is an MWD tool that combines the latest in electromagnetic frequency based technology with a durable and efficient design, providing an effective solution for EM applications.

Directional survey and steering only or optional gamma logging configurations with annular pressure capabilities are available. Programmable low frequency transmission and high-power output can significantly reduce noise sources for a clean signal. No mechanical parts reduce transmission problems in the presence of LCM. Down hole tool is fully retrievable and re-insertable for added confidence in lost in hole conditions. Continuous transmission and automatic resynchronization of survey and steering sequences eliminates the need to cycle pump for survey acquisition or tool face mode.

Applications

Features & Benefits

High operating temperature (175C) and pressure (20,000psi)

Wireline retrievable and reinsertable design (minimum 2.25in I.D.)

Available real-time gamma and annular pressure for LWD

Downlink capability for frequency and power settings

High-speed data transmission

Data transmission independent of pump pressure

Reduced lost circulation material (LCM) restrictions

Programmable frequency settings for noise elimination

Reduced mechanical parts for improved reliability and ruggedness

Continuous survey and steering frames automatic resynchronization

Specifications:

Directional, vertical, horizontal and re-entry wells

Logging While Drilling (LWD), gamma, annular pressure, vibration

Aerated and contaminated drilling fluids

Underbalanced drilling (gas, air, foam)

Lost circulation zones

High rate of penetration (ROP) applications

Coal bed methane (CBM)

Middle East Star Drill carries a full range of tool sizes from 3 1/8 inches OD through to 11 1/4 inches OD with various lobe configurations in different stages due to clients drilling conditions. This enables Middle East Star Drill coordinators to specify the right motor for the project with regard to hole size, displacement objectives, available pump capabilities and fluid properties. This range of directional motors enables Middle East Star Drill to specialize in hole sizes ranging from 4 1/8 inches through 26 inches.

 

Rig site adjustable housings ensure rig site flexibility and reduced on-site storage.

 directional motors are equipped with a field-adjustable housing that allows for easy and reliable bend adjustment from zero (or straight) to three degrees in 12 increments. The tensile strength of this adjustable housing meets or exceeds the rest of the motor to ensure uncompromised tool integrity. Middle East Star Drill’s adjustable housing features a 120 degree wear pad as an integral part of the adjusting ring. Regardless of the bend angle, the wear pad will always be opposite high side to ensure reliable directional performance.

Drive shaft and universal joints designed to withstand the rigors of variable torque applications.

Middle East Star Drill directional motors employ the latest technology in drive shafts and universal joints. This key assembly converts eccentric rotation from end of the rotor to concentric rotation through the bearing assembly to the bit box mandrel. Pressure compensated sealed bearing universal joints on each end of the shaft contribute to the motors reliability and run longevity.

Power section quality and selection ensure the right torque and rotary speed combination for optimal performance.

Middle East Star Drill directional motors are available with different power section options to handle a wide range of directional applications. Whether the job calls for high speed low torque, medium speed medium torque, low speed high torque, invert mud systems or drilling with air, you can rely on Middle East Star Drill’s professional operations team to assemble the right power section for optimum directional performance. The rotors and stators are cleaned, callipered, measured, inspected and cataloged after every job to ensure that all components are well inside the manufacturer’s recommended specifications.

All PDM Stabilization and wear pads are part of the proprietary directional assembly design provided by Middle East Star Drill.

Middle East Star Drill directional motors can be configured with a near bit stabilizer as part of the bent housing assembly to provide closer proximity to the drill bit. Stabilizers can be spiral or straight blade, and when run in conjunction with the integral wear pad at the bend, provides the full range of stabilization required for any directional plan.

 

Dump sub reliability ensures trips will be dry and quick/efficient.

This component, located at the top of the motor, is a normally-open valve which allows mud to by-pass the motor to fill the hole or drain the pipe when tripping. The valve will automatically close when pumping starts.

Middle East Star Drill`s PDM Systems consist of three type of famous PDM:

DynoMAX PDM

Cougar PDM

LILIN PDM

Middle East Star Drill Co. is equipped with LANDMARK’s and Sysdrill’s well plan software package. Features hydraulic design, torque & drag analysis, drill string calculation, cluster platform optimization, 2D & 3D trajectory design, anti-collision scan, industry plot output, etc., the package makes it possible to design the best well trajectory and BHA according to rig capability, drilling and producing demand, down hole tools performance, and target condition (which could be circle, ellipse, rectangle, polygon).