2results about How to "Reduce flow pressure" patented technology

This invention discloses a wellhead depressurization gas production device, relating to the field of natural gas extraction technology, which solves the technical problem of existing oil pressure affecting gas well production. The device includes a suction inlet connection assembly, a working cylinder, and a discharge outlet connection assembly connected in sequence. The working cylinder includes a separation joint, a parameter adjustment assembly, and a limiting short-circuit connected in sequence. A venting groove communicating with the parameter adjustment assembly is opened in the middle of the separation joint near its end. A discharge joint is sleeved on the limiting short-circuit. A suction port is opened on the outer wall of the parameter adjustment assembly. A power gas inlet connection assembly is vertically connected to the separation joint, and the power gas inlet connection assembly communicates with the venting groove. The separation joint has a suction through-hole along a direction parallel to the axis, with one end communicating with the suction inlet connection assembly and the other end communicating with the gap between the borehole outer cylinder and the parameter adjustment assembly. This invention can reduce wellhead oil pressure, thereby reducing bottomhole flowing pressure, amplifying pressure differential, and increasing gas well production.

The utility model relates to the technical field of aviation hydraulic pipelines, in particular to an aviation hydraulic pipeline connecting assembly which comprises a first connecting piece and a second connecting piece arranged at one end of the first connecting piece, a locking clamping piece is arranged on the peripheral face of the end, close to the second connecting piece, of the first connecting piece, and a locking mechanism is arranged in the locking clamping piece. A limiting groove is formed in the end face, close to the first connecting piece, of the second connecting piece, and the locking mechanism can be clamped into the limiting groove so that the first connecting piece and the second connecting piece can be connected and limited. The end, close to the second connecting piece, of the first connecting piece extends out of a connecting pipe, the connecting pipe penetrates out of the locking clamping piece and can extend into the second connecting piece, and the outer wall of the connecting pipe can be attached to the inner wall of the second connecting piece. The sealing device is good in sealing effect, low in machining precision requirement and convenient to mount and dismount.