Which of the following statements is true about the PKN model and the KGD model?
A: PKN model is suitable for the fracture with a long fracture length greater than the fracture height.
B: KGD model is suitable for the fracture whose height is far greater than its length.
C: The plane assumption of PKN model is the direction of fracture width and height.
D: The plane of KGD model is assumed to be joint width and seam length direction.
A: PKN model is suitable for the fracture with a long fracture length greater than the fracture height.
B: KGD model is suitable for the fracture whose height is far greater than its length.
C: The plane assumption of PKN model is the direction of fracture width and height.
D: The plane of KGD model is assumed to be joint width and seam length direction.
举一反三
- – What’s the model plane look like?- Well, the wings of the plane are of its body. A: more than the length twice B: twice more than the length C: more than twice the length D: more twice than the length
- Which are corrrect for choosing proppant A: for low permeability formations,the fracture mainly is requires to increases the length B: for low permeability formations,the fracture mainly is requires to increases fracture conductivity C: for medium or high permeability formations,the fracture mainly is requires to increases the length. D: for medium or high permeability formations,the fracture mainly is requires to increases fracture conductivity.
- Which of the following is incomplete fracture? () A: Fissured<br/>fracture B: Transverse fracture C: Oblique fracture D: Spiral<br/>fracture
- Which one is incomplete fracture? A: linear fracture B: comminuted fracture C: spiral fracture D: Oblique fracture
- The sum of length, width and height should be no more than (5)