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Showing posts from March, 2020

Gas Lift Supplier - Gas Lift Equipment

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 Gas Lifting is a secondary means of production. It is employed when formation pressure declines to the point where formation liquids can’t flow to the surface. In a gas lift system gas is injected into the liquid in the tubing which decreases its density. Formation pressure can then flow the aerated column of liquid to the  surface. Although gas lifting is generally thought of as a method to assist a low-pressured oil well it is used extensively in low pressured gas wells that are prone to water production. Gas Lift Equipment The side pocket system is the most common. The well is initially completed with side pocket mandrels installed in the tubing string at pre-determined depths. Gas lift dummies are installed in the mandrels and are pulled and replaced with gas lift valves when the formation pressure has declined  to a point where production is declining. The system can be set-up to be continuous lift or intermittent lift. A kickover tool with a pulling tool attached is used to extr

Gas Lift Manufacturer -Tubing Nipples

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 Tubing Nipples – Selective According To Profile & Top No-Go The RPT Plug/Mandrel uses a profile nipple in conjunction with a top no-go restriction to locate and set. It is especially suited for large-bore production strings. The plug can withstand a 10000 psi differential from either direction. The RPT is available for tubing sizes ranging from 2 3/8” to 7” It can be used as a receptacle for a plug when installed above the subsurface safety valve. This prevents the safety valve from being used as a pressure barrier should work on the tree be required. It’s bore is larger than the rest of the production nipples so the RPT doesn’t “get in the way” of other wireline- associated operations. Otis X & R equipment are examples of nipples and associated lock mandrels which are selective due to the functions of the running tool. Unlike S equipment,X Unlike S equipment,X nipples do not have To be installed in the tubing in any particular order since there is no difference in the profi

Safety Relief Valves - Relief Valves

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 Sub-Surface Safety Valves – API Practices for Equalizing and Opening After the SCSSV tests successfully, use the following recommended reopening procedures. a) SCSSVs with equalizing features: with external pressure source. Pressurize the tubing above the valve until the pump- through feature of the SCSSV functions to indicate the pressures are equalized. When equalized, slowly increase control-line pressure to the value recorded in step 1 or to the pressure established for normal operations. without external pressure source. With the well shut in, increase control pressure slowly until the tubing pressure begins to increase. Close the manifold control valve and record the opening pressure. When the tubing pressure stabilizes, pressurize the control system to open the SCSSV. Increase the hydraulic control-line pressure to the value recorded in step 1, or to at least 3,45 MPa (500 psi) greater than the opening pressure. b) SCSSVs without equalizing features: An external pressure so

Well Service Equipment - Completion Equipment

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 Completion Equipment The primary function of the Christmas Tree and wellhead is to provide a safe and secure path for produced hydrocarbons out of the well into production facilities. The master, swab, and flow line valves provide means to shut in the well when needed. Some master valves provide wireline cutting capability. The tubing hanger provide isolation between the tubing string and the annulus. The Surface Safety Valve (SSV) will be on a circuit that allows for automatic shut-in in the event of an emergency. A Surface-Controlled Sub-Surface Safety Valve (SCSSV) is required in most locations. These valves are held open by hydraulic pressure on a control line. If something happens to the control line pressure, the SCSSV will automatically close. Actuated valves, which can be either hydraulically or pneumatically controlled, are required on all offshore areas in the US. They may also be required on some inland water and land locations The Tree Test Plug is installed in the tubing

How the Oil and Gas Industry Works-Conclusions

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Consider the following about gas: • Gas is a compressible and expandable fluid. The gas that enters the well does so under formation pressure. • Gas will expand as pressure and temperature on the gas is reduced provided there is physical room for expansion. • If gas doesn’t expand, pressure within the gas remains the same—essentially formation pressure. • Gas is lighter than mud and can migrate up the hole after it enters; however, gas migration is not a given, and there are several things that can affect whether or not gas will migrate, and if it does, how fast. • If gas migrates up the wellbore after shut-in there exists the possibility of extreme pressures to be exerted on the wellbore and the surface. • As gas is circulated out of the hole, physical room for controlled expansion is created by bleeding mud through a choke. Since expansion takes place, pressure within the gas is gradually reduced which reduces internal wellbore stress. The next few pages illustrate what can happen if

Introduction to Oil and Gas Industry "BOP equipment pressure and function tests"

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 Documentation for Barrier Tests The results of all BOP equipment pressure and function tests shall be documented and include, as a minimum, the low and high end test pressures, the duration of each test, and the results of the respective component tests. Pressure tests shall be performed with a pressure chart recorder or equivalent data acquisition system and signed by a pump operator, contractors tool pusher, and operating company representative. Problems observed during testing and any actions taken to remedy the problems should be documented. Manufacturers should be informed of equipment that fails to perform in the field. When a well barrier/element test fails, it shall be reported and the failed component repaired. Different Barrier Types Fluid Barriers: For a column of fluid to be a barrier, it must be controllable and monitorable. The fluid can be brine, crude oil, gas, water, completion fluid, or a combination. Mechanical Barriers: Casing below the packer Packer Tubing Tubing

Oil price today "The purpose of well control"

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 The purpose of well control and/or emergency drills is to familiarize the drillcrew with procedures that will be implemented and steps that will be taken in a well control event. Well control drills help the rig team to be more alerted and ready to warning signs; it also improves their capabilities in early kick detection. Supervisors need to make sure that the drill is carried out in the most realistic manner possible. Remember, mother nature never tells you that she’ll kick you next Monday at 3 a.m! Pit Drills should be performed at least once a week with each crew. Different pit drills can be listed as: Trip drill Strip drill Choke drill Lubrication and Bleeding - The lubrication and bleeding method involves pumping kill fluid into the well and then bleeding gas at the surface after the fluid has fallen and settled. Items required:- Accurate pressure gage at surface High pressure pump Method to measure volume of fluid pumped into the well.(Optional) Choke to bleed gas out of the we