Hydraulic fracturing and production wellhead device and use method thereof
A wellhead device and fracturing technology, which is applied in the direction of wellbore/well valve device, earthwork drilling, wellbore/well components, etc. It can solve the problem of high overall height of the Christmas tree, reduce the number of configurations, and simplify the disassembly process , the effect of easy operation
Inactive Publication Date: 2020-04-17
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0004] The present invention provides a hydraulic fracturing and production wellhead device and its use method, which overcomes the shortcomings of the above-mentioned prior art, and can effectively solve the problem that the overall height of the existing Christmas tree is high
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[0022] The present invention is not limited by the following examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention.
[0023] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the appendix of the description. figure 2 The layout method is described, such as: the positional relationship of front, back, top, bottom, left, right, etc. is based on the instructions attached figure 2 determined by the layout direction.
[0024] Below in conjunction with embodiment and accompanying drawing, the present invention is further described:
[0025] as attached Figures 1 to 3 As shown, the hydraulic fracturing and production wellhead device includes a tubing head reducer 2, a first gate valve 3, a small cross 4 and a pressure-controlled tubing head cross 1, and the pressure-controlled tubing head cross 1 ...
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The invention relates to the technical field of oil production wellhead devices, and provides a hydraulic fracturing and production wellhead device and a use method thereof. The hydraulic fracturing and production wellhead device comprises a tubing head reducing joint, a first gate valve, a small four-way joint and a pressure control tubing head four-way joint. The pressure control tubing head four-way joint comprises a tubing head four-way joint and a main control gate valve, and the tubing head four-way joint, the tubing head reducing joint, the first gate valve and the small four-way jointare fixedly connected in sequence from bottom to top. After the tubing head four-way joint and the main control gate valve are integrated, the fracturing operation requirement can be met and pressurecontrol can be conducted on a casing pipe channel, and in the subsequent reverse drainage and self-spraying production process, Christmas tree installation operation is completed under the condition that casing pressure is controllable by controlling opening and closing of the built-in valve plate of the tubing head four-way joint; with application of the hydraulic fracturing and production wellhead device, the configuration number of gate valves on a vertical drift diameter above the wellhead is reduced, and the overall height of the Christmas tree is greatly reduced; and the disassembly andassembly process in the operation process is simplified and the operation of later production is facilitated.
Description
technical field [0001] The invention relates to the technical field of oil production wellhead devices, in particular to a hydraulic fracturing and production wellhead device and a use method thereof. Background technique [0002] In recent years, Xinjiang Oilfield has made great achievements in the field of exploration and development. One billion-ton oil and gas fields such as Mahu Oilfield and Jimusar have been discovered one after another. At the same time, the battle to increase crude oil production has also begun. [0003] Since this oilfield block is an unconventional oil and gas reservoir, the development process needs to use horizontal well volume fracturing technology. In the current fracturing operation process, a fracturing wellhead device + 2 large-diameter gate valves (that is, including a main control gate valve) are used. ) + fracturing tree structure for fracturing. When the fracturing drill plug operation is completed, the large-diameter gate valve is clos...
Claims
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Login to View More IPC IPC(8): E21B43/26E21B33/047E21B34/02
CPCE21B43/26E21B33/047E21B34/02
Inventor 庞德新申玉壮高亮王海涛周汉鹏秦利军
Owner BC P INC CHINA NAT PETROLEUM CORP