CNC Machining

Application of CNC in the field of oil exploration

CNC machining is a generic term used for various machining applications. "CNC" stands for Computer Numerical Control and refers to the programmable functions of a machine that allow the machine to perform many functions with very little human control. CNC machining is the manufacture of parts using CNC-controlled machines. The term describes a series of subtractive manufacturing processes in which material is removed from stock workpieces or bars to produce finished parts. There are 5 different types of CNC machines that perform 5 common types of CNC machining.

These processes are used in many applications in the medical, aerospace, industrial, oil and gas, hydraulics and other industries. A variety of materials can be CNC machined, including metal, plastic, glass, composites and wood.

CNC machining offers many advantages over machining without CNC programmable features. Significantly reduced cycle times, improved finishes, and multiple functions can be accomplished simultaneously with increased quality and consistency. It is good for medium to high volume requirements that require accuracy and complexity.

CNC lathes and lathes

CNC lathes and lathes are characterized by their ability to rotate (turn) material during machining operations. The cutting of these machines is fed in a linear motion along the rotating bar; material is removed around the circumference until the desired diameter (and feature) is achieved.

A subset of CNC lathes are CNC Swiss lathes. Using a CNC Swiss lathe, the rod of material rotates and slides axially into the machine through a guide bush (holding mechanism). This provides better support for the material (resulting in better/tighter tolerances) when the tool is machining part features.

CNC lathes and lathes can create internal and external features on parts: drilled, drilled, reamed, grooved, tapped, taper, and thread. Components manufactured by CNC lathes and turning centers include screws, bolts, shafts, poppet valves, and more.

●CNC milling machine

CNC milling machines feature the ability to rotate cutting while keeping the workpiece/block of material stationary. They can produce a variety of shapes, including face milled features (shallow, flat surfaces and cavities in the workpiece) and perimeter milled features (deep cavities such as slots and threads).

Parts produced on CNC milling machines are usually square or rectangular shapes with various features.

●Anti-Falling Object Oil Pump

1. Working principle:

When the plunger goes up, the fixed valve is opened, the floating valve is closed, and the oil will be lifted into the lower chamber of the pump barrel. The plunger continues to move upward until the prescribed stroke, the end of the upward stroke, and the oil fills the entire pump chamber.

When the plunger goes down, the fixed valve is closed, the floating valve is opened, and the oil flows up the plunger to the upper chamber and the oil pipe of the pump barrel. The downstroke ends.

2. Structural features:

(1) The fixed valve at the bottom of the pump adopts the annular space design, and the falling object space is large, which avoids the blockage of the oil inlet due to the direct falling of sand particles and residues.

(2) The unique design of the fixed oil inlet and outlet of the valve avoids the blockage of the oil inlet and outlet of the whole pump caused by the reciprocating motion of the plunger causing the sand and residue to reciprocate.

●Bridge air proof oil pump

1. Working principle:

During the upstroke, the plunger is at the bottom position. Due to the high hydraulic pressure of the upper oil pipe, the upstream and downstream moving valves are closed, and the plunger moves upwards. Under the action of the pressure difference, the fixed valve is opened to enter the oil, and the downhole pressure drives the formation liquid to pass through the fixed valve. into the pump barrel;

During the downstroke, the oil pressure drives the floating valve to open, and the oil flows from the underside of the plunger to the top of the plunger through the floating valve in the plunger inner hole, thereby flowing into the oil pipe.

2. Structural features:

The bridge pump is a stress bridge (the outer pipe of the bridge pump) between the upper and lower couplings of the conventional pump, and the pump barrel is suspended and fixed in the outer pipe only by one end, so as to avoid the suspension of the tail pipe and the anchor. The tensile force generated by the fixed oil pipe anchor and the setting packer causes the pump barrel to shrink in diameter or bend.